Factiry installed are single sealed bearings, they are just fine, but as they seem not have been hanged ever, I decided to instal new earring velour hitting the Pamir highway trip.
I decided rather then buying a Chinese pre-made when bearings kit from Allballs, to use Japanese made bearing from FAG. Not sure whether they are in any way better then the Allballs, but some online comments suggest so. So that’s the way I headed to.
As for installation, I did not hammer the bearing out as suggested in many of the videos, but instead opted to use a cheapo Amazon bearing pull tool which served me well. As for installation, here as well, cheap Amazon did the trick.
Bearings
Front
17mm X 35mm X 10mm, 6003, 2X
Rear
20mm X 47mm X 14mm, 6204, 2X
25mm X 52mm X 15mm, 6205, 1X
Seals
Front left: 23 X 35 X 6 mm
Back right: 26 X47 X 5 mm
Hub/Drive seal: 34 X 52 X 6 mm
Installation
Amazing installation link: Bushpig Performance
Put bearings into freezer (1 hr)
Front wheel removal
Remove front wheel and wheel spacers.
Pry seal out with flat screwdriver.
Install bearing puller and pull both bearings.
Remove spacer.
Front wheel install
NOTE: The LEFT bearing (break disk side) is installed first and fully seated!
Take bearing out of freezer and add applying a thin layer of grease on the outer race.
Heat the bore and surrounding area of the hub.
Place the bearing in the hole. With a socket that matches the outer race, give a few good taps to be sure the bearing is resting all the way down.
Turn the wheel and add the spacer.
Tap in the second bearing until it slightly touches the spacer. The spacer should still be able to move slightly, but not too loose.
Grease and press in the seal. The seal needs to be flush with the hub.
NOTE: There is only one seal on the disk side. The closed side of the seal is outside.
Reinstall wheel, axle to 65Nm and the nuts to 10Nm.
Back wheel and cush drive
NOTE: The RIGHT bearing (break disk) is installed first and fully seated.
Remove and install in the same fashion.
The cush wheel bearing is seated and has the CLOSED part of the seal INSIDE.
On the back wheel, the seal is only on the break disk side and the CLOSED side of the seal is towards the INSIDE.








